Sliding caster cup



May 31, 1932. Q A SCHACHT 1,861,095

SLIDING CASTER CUP Filed June 9, 1931 a le ,b a -..-,T

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F. Z Z5 2c Z Z Patented May 31, 1932 UNITED STATES CLIFFORD A.. SCHACHT,F HUNTINGTON, INDIANA- BLDING CASTER m Application med June 9, 1931.Serial No. 543,191.-

' This invention is a novel im rovement in sliding caster cups and theprincipal object of the invention is to provide a caster cup adaptedtobe used on furniture of all kinds :f3 such as beds,desks, etc., whetherprovided with casters in the legs of the furniture, or without casters,my novel caster cup receivingeither the caster or the end of thefurniture leg itself seated in the recess therein.

.Caster cups have heretofore been made of glass, but have not roven verysatisfactory since the glass will reak after a short use. Castercupsghave heretofore also been made of Wood but have been foundunsatisfactory since the wood will not readily slide on the Vfloor;also-icaster cups have been made of rubber, but such cups are alsounsatisfactoly since the rubber, like the wood, will not sli e readilyand moreover produces undue friction ainst movement upon the Hoorsurface. Wi the glass and wooden types of caster cups above mentioned,when the cups are set under the article of furniture and the furnituremoved, the caster wheel tends to roll out of the cu and when using plainrubber caster cllps suc cups usually warp entirely out of s a v ith myimproved caster cu the recessed rubber insert is `encased or loc ed in ashell composed of stiff material of a slidable nature, such as metal,glass, wood, bakelite, etc.,

wherebythe rubber cannot warp out of shape and moreover the recesses inmy rubber insert are provided with means for setting up friction forpreventing the caster wheels from rolling out of the caster cups whenthe furniture is moved.

I'will explain the invention with reference to the accompanying drawingwhich illustrates lseveral practical embodiments thereof to enableothers familiar with the art to adopt Fig. 2 is a top lan view of thecaster shown in Fig. 1, detac ed; Fig. 3 is a vertical form of caster cuFig. 4 is a top plan shown in Fig. 3.

Fig. 5 is a vertical section through a modified orm of caster cup;

Fig. 6 is atop plan view of the caster cup shown in Fig. 5..

Figs. 7, 8, 9, 10, 11 and 12 are vertical sections through still furthermodified forms of caster cups.

Fig. 13 is a plan view of a caster cup having a noncircular recesstherein.

section through another view' of the caster cup Figs. 14 and 15 aresectionsthrough fury ther modified forms of caster cups.

As shown in Figs, l and 2, the caster cup comprises a ,resilient body 1preferablyof rubber or other yieldable material havin a 'substantiallycylindrical form, provided with a relatively deep recess 1a in its u perend the bottom of the recess being slig tly concave as at 1b, and ytheupper portion of the recess 1a being iared outwardly, or countersunl'r,as at 1c, the recess above described formin va pocket 1 for receivingthe caster wheel and preventing same from rollingl out of the cup.Around the lower ortion of the body 1 is a shell 2,.preferably o metal,

glass, wood, bakelite, or other hard surfaced material which willreadily slide upon lthe floor surface, the sides of the cup beingcrimped or bent slightly inwardly as at 2a to lock the rubber-'body 1 inthe shell; and

the corners of the shell being slightly rounded as at 2b so that the cupwill slide easily upon the floor.

' The caster cup may of course be made in various sizes to suitdiiferent sizes of caster wheels. Where the furniture leg L is notprovided with a caster wheel the le itself ma be inserted in the recess1a of t e cup,

Aan by. reason of the shape of the recess the furniture leg L will notslide out of the cup when the latter is moved across theiioor.

In Figs. 3 and 4 a slightly modified form of the caster cup is shown inwhich the shell 2 is provided with a raised parti-globular seat 2c atits center adapted to fit a compleand body mentary recess 1d in therubber body 1. The raised portion 2c of the shell enhances .the apeerance of the cup and st the same time wien the operator is assemblingthe shell 2 1 the portions 2c and 1d fit snugly together, so that therubber body 1 cannot slip in the shell 2 while being assembled. Theraised seat 2c further assists in supporting the caster wheel orfurniture leg L. The

u bottom of the recess 1b is moreover provided with a plurality ofconcentric raised corrugations le of circular form to assist inpreventing the caster wheel C from rolling out of the cu when movedacross the door due to the u friction set up by the corrugations 1e onthe the recess 1a is rovide with an inwardly extend- 1f to furtherprevent the caster furniture leg from rolling or slidwheel C. The u perrim o further be :feel or 90 ingrout of the cup.

i 5 and 6 show a further modification in w ich the rubber body 1 issubstantially the same as that shown in Fig. 3, except that theconcentric corrugations (le of Fi 3) are omitted; also the shell 2 isnot provi ed with the raised seat 2c of Fig. 8) and a reduced recess 1gexten entirel through the body 1 from the bottom of t e recess 1a to theshell 2, the upper edge. of the reduced recess 1g gripping t e casterwheel C and assisting in preventing same from rolling out of the cu Ifdesired the recess 1g may have a small bead 1h around its upper edge toincrease the friction on the wheel C.

In Fi 7 the body 1 is substantially the same as t at shown in Fig. 1,but is provided with the reduced bore 1g as shown in Fig. 5. and theshell 2 is also provided with a central openin 2e below the reduced bore1g of the body. is caster cup is particularly adapted for use on oilstoves and the like, for if any oil, water, etc. should fall into therecess in the cu the same will readily drain therefrom an cannot collector remain therein.

The recesses 1a and 1g, may if desired be of any desired shape and neednot be circular for instance, as shown in Fig. 13 they may be square, orthey may be rectan lar or otherwise, the shape of the recess ing such aswill suit the shape of the furniture leg which would usually be squarefor wooden furniture; and round for metallic furniture.

In Fig. 8 the rubber body 1 is shown as being very thin below the recess1a and is otherwise substantially the same as that shown in Fig. 3except that the corrugations 1e are omitted. When the caster wheel C isset in the caster cup, the thin rubber in the base of the cup gives,creating a deeper pocket which keeps the Wheel from rolling out, and theraised seat 20 enhances the appearance of the shell and at the same timewhen the operator is assembling the body 1 and shell 2 the parts willfit snugly together so that the rubber body 1 cannot slip, and

the raised seat '2o also helps support the weFight of the caster wheel.

ig. 9 shows a caster cup for very light furmture provided either with orwithout caster wheels. In this type of cup the recess 1a need only bevery shallow, the concentric raised corrugations 1e are also .providedas in Fig. 3, and the corrugations 1e will keep the wheel or'furnitureleg from rolli oil or out of the cup.

In ig. 10 the caster cup is substantially the same as shown in a preced'figure, but the reduced recess 1k does not extend to the shell 2, butforms a deepened pocket for frictionally enga the caster wheel C orfurniture leg .gu'lxe shell is preferabl provided with the raised seat2c; and in ig. 11 the caster cup is substantiall the saine as in Fig. 10with additional bea s 1m in the u per recess 1a; and in Fig. 12substanti y the same cup as shown in Fi 11 is illustrated, except thatthe redu recess 1k is omitted, the recess 1a being slightly deeper thanin Figs. 10 and 11.

Fig. 14 shows a further modified form of caster cup; the body 1 beingsubstantially the same as that shown in the previous figures(articularly Fig. 11) and fitting the shell 2 w ich may have uncrimpedor vertical sides, the rubber body being retained in the shell 2 byvacuum. A relatively thick exterior bead la: extends around the top ofthe body 1 above the shell 2 and projects outwardly beyond the shell toact as a bumper to prevent the hard shell 2 from marring or injuringwalls, or other furniture against which the shell might otherwisecontact when the caster cup is moved. The recess in the body 1 may beplain or provided with pockets, or corrugations as shown in the otherfigures.

In Fig. 15 the rubber bod 1 is shown as screwed into the shell 2, botKarts having threads formed therein. In t is modification no crimping orbendin of the shell around the rubber is require M novel sliding castercups can be used on desks, beds and all kinds of furniture, whether ornot the furniture is provided with caster wheels, and the :1w-:w: in theupper ends of the cups can be made of any desired shape, eithercircular, square, etc., to suit the sha es of the legs. If caster wheelsare not u on the legs then the legs themselves may be fitted in thecups; and if the legs are provided with caster wheels the caster wheelsmay be laced in the cups. The hard shells 2 permit the caster cu s to bereadily moved across the floor, an the shells moreover lock the rubberbodies 1 in place therein. The double pocketed or recessed constructionwith the corrugations in the recesses will prevent the caster wheelsfrom rolling out of the cups while the furniture is being moved.

I do not limit my invention to the exact forms shown in the drawings,for obviously changes may be made `therein within the scope of theclaims. v

I claim:

1. A yieldable insert for sliding caster cups comprising a relativelyfiat rubber body having a relatively shallow recess in its upper portionfor loosely receiving a furniture leg and means in the recess forfrictionally preventing the leg from sliding out of said recess.

2. lA sliding caster cup, comprising a recessed body of yieldingmaterial; a shell of hard material around the lower portion of the body;and raised corrugations in said recess for preventing articles fromrolling out of said recess.

3. A sliding caster cup, comprising a recessed body of yieldingmaterial; a shell of hard material around the lower portion of the body;and an inwardly projecting bead at the upper end of the recess forpreventing articles from rolling out of the recess.

4. A sliding caster cup, comprising a recessed body of yieldingmaterial; a shell of hard material around the lower portion of the body;-raised corrugations in the recess, and an inwardly projecting bead atthe upper end of the recess, for preventing articles from rolling out ofthe recess.

5. A sliding caster cup, comprisinga're cessed body of yielding`material; a shell of hard material around the lower portion of the body:and a reduceddepression in the bottom of the recess for preventingarticles from rolling out of the recess.

6. A sliding caster cup, comprising a resaid recess.

cessed body of resilient rubber; a. shell of hard slidable materialaround the lower portion of the body; a reduced depression in the bottomof the recess for preventing articles from rolling out of said recess;and interengaging portions on the ,bottom of the shell, for the purposespecified.

11. A sliding caster cup, comprising a recessed body of resilient rubbera shell of hard slidable material around the lower portion of the body;a reduced depression in the bottom of the recess; raised corrugations inthe bottom of the depression, and an inwardly projecting bead at theupper end of the recess for preventing articles from rolling out ofCLIFFORD yA. s'cHAcH'r.

cessed body of yielding material; a shell of hard material around thelower portion of the body; and interengagingvportions on the bottom ofthe body and shell, for the purpose hard slidable'material around thelower por tion of the body: a reduced depression in the recess, andraised corrugations in thebottom of the depression for preventingarticles from rolling out of said recess.

9. Asliding caster cup, comprising a recessed body of resilient rubber;a shell of h ard slidable material around the lower portion of the body;a reduced depression in the bottom of the recess, and concentric raisedycorrugations on the walls of the recessfor preventing articles fromrolling out of said recess.

10. A sliding caster cup, comprising'a re-

